undefined method `stringify_keys!' ruby on rails

Question

I have this code:

def addcar
  @car = Car.new(params[:car])
  render :action => 'list'
end

<% @allcars.each do |cell| %>
  <p>
    <%= link_to cell.to_s, :controller => 'car', :action => 'addcar', :car => cell.to_s %>
  </p>
<% end %>

It's giving me this error:

undefined method `stringify_keys!' for "Honda":String

I don't understand what is wrong with :car.

Ryan Bigg · Accepted Answer · 2009-11-30 10:46:43Z

42

in the addcar method, you try to create a new object (create method) while transfering just a string to it (params[:car] which apparently is set to "Honda").

create expects to get an attributes hash and to stringify it's keys for the column names.

If you have a column named name in your cars table then try this:

@car = Car.new(:name => params[:car])

edited Nov 30, 2009 at 10:46

Ryan Bigg

108k25 gold badges243 silver badges264 bronze badges

answered Nov 29, 2009 at 14:58

ennuikiller

47.1k15 gold badges115 silver badges137 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Lilz Over a year ago

unfortunately that just gives me: undefined local variable or method `carName' for #<CarsController:0x137cc67>

Collectives™ on Stack Overflow

undefined method `stringify_keys!' ruby on rails

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related